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English

2-2 Standard supplied accessories

Confirm the following accessories are included. The storage location 
of the accessories is shown in figure 1.

Note

Do not throw away any of the accessories until installation is com-
plete. They are needed for installation work.

(Refer to figure 1)

1.

Clamps, Manuals, etc.

2.

Accessory pipes

2-3 Option accessory

To install the outdoor units, the following optional parts are also required. 
To select an optimum kit, refer to “

6. REFRIGERANT PIPING

”.

• Refrigerant branching kit 

• Pipe size reducer

Make sure that any separately purchased accessories are designed 
for use with R410A.

2-4 Technical and Electrical specifications

Refer to the Engineering Data Book for the complete list of specifications.

2-5 Main components

For main components and function of the main components, refer to 
the Engineering Data Book.

3.

SELECTION OF LOCATION

Select a location for installation that meets the following conditions 
and get the customer’s permission.

1.

There is no danger of fire due to leakage of inflammable gas.

2.

Select the location of the unit in such a way that neither the dis-
charged air nor the sound generated by the unit disturb anyone.

3.

The foundation is strong enough to support the weight of the unit 
and the floor is flat to prevent vibration and noise generation.

4.

The piping length between the outdoor unit and the indoor unit 
may not exceed the allowable piping length.
(Refer to

  

6. REFRIGERANT PIPING

”)

5.

Locations where the unit’s suction vent and outlet vent do not gen-
erally face the wind.
Wind blowing directly into the suction or outlet vents will interfere 
with the unit’s operation.
If necessary, install some kind of obstruction to block the wind.

6.

The space around the unit is adequate for servicing and the min-
imum space for air inlet and air outlet is available.
(See the “

Installation Space Examples

” for the minimum space 

requirements.)

Installation Space Examples

The installation space requirement shown in figure 2 is a refer-
ence for cooling operation when the outdoor temperature is 35°C. 
If the design outdoor temperature exceeds 35°C or the heat load 
exceeds maximum capacity in all the outdoor unit, take an even 
large space on the intake shown in figure 2.

During installation, install the units using the most appropriate of 
the patterns shown in figure 2 for the location in question, taking 
into consideration human traffic and wind.

If the number of units installed is more than that shown in the pat-
tern in figure 2, install the units so there are no short circuits.

As regards space in front of the unit, consider the space needed 
for the local refrigerant piping when installing the units.

If the work conditions in figure 2 do not apply, contact your dealer 
or Daikin directly.

(Refer to figure 2)

1.

Front side

2.

No limit to wall height

3.

Service space of front side

4.

Service space of suction side

For Patterns 1 and 2 in figure 2 :

Wall height for front side – no higher than 1500 mm.

Wall height on the suction side – no higher than 500 mm.

Wall height for sides – no limit.

If the height is exceeded the above, calculate h1 and h2 shown 
in the figure below, and add h2/2 to the service space of front 
side and h1/2 to the service space of suction side.

Note

1.

An inverter air conditioner may cause electronic noise gener-
ated from AM broadcasting. Examine where to install the main 
air conditioner and electric wires, keeping proper distances 
away from stereo equipment, personal computers, etc. 
Particularly for locations with weak reception, ensure there is a 
distance of at least 3 meters for indoor remote controllers, 
place power wiring and transmission wiring in conduits, and 
ground the conduits.

 (Refer to figure 3)

1.

Indoor unit

2.

Branch switch, overcurrent breaker

3.

Remote controller

4.

COOL/HEAT selector

5.

Personal computer or radio

2.

When installing in a locations where there is heavy snowfall, 
implement the following snow measures.

Ensure the base is high enough that intakes are not clogged 
by snow.

Remove the rear intake grille to prevent snow from accumu-
lating on the fins.

3.

If condensate may drip on downstairs (or walkway) depending 
on the floor condition, take a measure such as the installation of 
central drain pan kit (sold separately).

for 3 piping

REFNET header

KHRP25M33H KHRP25M72H KHRP25M73H

REFNET joint

KHRP25A22T KHRP25A33T KHRP25A72T KHRP25A73T

for 2 piping

REFNET header KHRP26M22H KHRP26M33H KHRP26M72H KHRP26M73H
REFNET joint

KHRP26A22T KHRP26A33T KHRP26A72T

for 3 piping

for 2 piping

for REFNET header KHRP25M72HP KHRP25M73HP KHRP26M73HP
for REFNET joint

KHRP25M72TP KHRP25M73TP

3 pcs.

Shape

Liquid side

accessory

pipe (1)

Liquid side

accessory

pipe (2)

Suction gas

side accessory

pipe (1)

Suction gas

side accessory

pipe (2)

HP / LP gas

side accessory

pipe (1)

L type

accessory

joint (1)

L type

accessory

joint (2)

accessory

joint (2)

HP / LP gas

side accessory

pipe (2)

1 pc. about each item

Clamp(1)

1 pc.

1 pc.

9 pcs.

Clamp(2)

8  type

12 type

Quantity

Name

Name

10 type

14·16 type

Manuals, etc.

Shape

Quantity

Shape

8  type

12 type

Name

10 type

14·16 type

Quantity

 Operation manual

 Installation manual

 Declaration of conformity (PED)

 “REQUEST FOR THE INDICATON” 

label (Installation records)

 “ADDITIONAL REF. CHARGE” label

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

1 pc.

φ

22.2

φ

15.9

φ

19.1

φ

22.2

φ

15.9

φ

19.1

φ

22.2

φ

25.4

φ

19.1

φ

22.2

φ

28.6

φ

19.1

φ

22.2

φ

28.6

h2

1500

<Front side>

<Suction side>

500

h2

2

or more

Service

space

h1

2

or more

h1

500

+

+

01_EN_3P201178-4B.fm  Page 3  Friday, May 18, 2007  7:58 PM

Summary of Contents for VRV III REYQ8PY1B

Page 1: ...ir conditioner Installationsanleitung VRVIII System Klimaanlage Manuel d installation Conditionneur d air VRVIII System Manual de instalaci n Sistema de acondicionador de aire VRVIII Manuale di instal...

Page 2: ...Q32PY1 E RXYQ34PY1 E RXYQ36PY1 E RXYQ38PY1 E RXYQ40PY1 E RXYQ42PY1 E RXYQ44PY1 E RXYQ46PY1 E RXYQ48PY1 E RXYQ50PY1 E RXYQ52PY1 E RXYQ54PY1 E REYQ8PY1 REYQ10PY1 REYQ12PY1 REYQ14PY1 REYQ16PY1 REYQ18PY1...

Page 3: ...nit Pattern 1 Pattern 2 Pattern 1 Pattern 2 Pattern 3 When installed in serial 1 4 3 4 3 4 3 4 3 1 2 1 1 1 200 300 Pattern 3 2 1 figure 6 1 2 1 2 3 figure 7 1300 1162 1 4 3 2 765 729 631 765 1 2 3 fig...

Page 4: ...OOUT DUNIT F1 F2 F1 F2 1 2 3 4 A1P TOIN DUNIT F1 F2 F1 F2 TOOUT DUNIT F1 F2 F1 F2 6 7 TOIN DUNIT F1 F2 F1 F2 TOOUT DUNIT F1 F2 F1 F2 6 7 5 F1 F2 F1 F2 8 1 2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 1 A1P 2 figur...

Page 5: ...9 10 13 14 15 11 12 18 19 16 17 1 2 1 3 2 figure 25 1 2 3 10 11 12 4 5 6 7 8 9 13 14 15 16 3 11 12 10 4 5 6 7 9 8 13 14 15 16 1 2 figure 29 figure 30 1 2 3 4 figure 32 1 2 3 4 5 figure 28 figure 24 3...

Page 6: ...3P201178 4B EM07A013 0705 HT...

Page 7: ...ge Excessive refrigerant in a closed ambient can lead to oxygen defi ciency Contact your dealer for more information Be sure to use only the specified accessories and parts for instal lation work Fail...

Page 8: ...ur multiple outdoor system into smaller independent systems each containing less than 100kg refrigerant charge For factory charge refer to the unit name plate Important information regarding the refri...

Page 9: ...igerant piping when installing the units If the work conditions in figure 2 do not apply contact your dealer or Daikin directly Refer to figure 2 1 Front side 2 No limit to wall height 3 Service space...

Page 10: ...rooves around the foundation Drain water is sometimes discharged from the outdoor unit when it is running For anti corrosion type use nuts with resin washers If the paint on nut connections comes off...

Page 11: ...ass remove the pinch piping Any gas remaining inside may blow off the pinch piping when you dis solve the brazing causing damage Refer to figure 12 1 Pich piping 4 pieces 2 Do not remove the relay pip...

Page 12: ...pipe length between outdoor unit 2 and indoor unit 190m Note 1 Assume eqivalent pipe length of REFNET joint to be 0 5m that of REFNET header to be 1m that of BSVQ100 160 to be 4m that of BSVQ250 to b...

Page 13: ...es KHRP26M22H or KHRP26M33H KHRP26M33H KHRP26M72H KHRP26M73H KHRP26M73HP Refrigerant branch kit name Example for indoor units connected downstream Example REFNET joint C Indoor units 5 6 7 8 Example R...

Page 14: ...37 0 18 0 059 0 26 0 12 0 022 1 02 HEAT RECOVER SYSTEM MODEL NAME THE AMOUNT OF REFRIGERANT REYQ8 16PY1 REYQ18 20PY1 REYQ22 24PY1 REYQ26PY1 REYQ28 30PY1 REYQ32 40PY1 REYQ42PY1 REYQ44 46PY1 REYQ48PY1 3...

Page 15: ...If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the prod uct is operating attach a reversed phase protection circuit locally Running...

Page 16: ...3 and N phases of the power wiring should be secured separately to the hook using the included clamp 1 The ground wiring should be bound to the power wiring using the included clamp 1 to prevent outsi...

Page 17: ...moisture might enter the piping follow belows I e if doing work during the rainy season if the actual work takes long enough that condensation may form on the inside of the pipes if rain might enter...

Page 18: ...compressor leading insulation degradation Be sure to use the correct tools The shutoff valve is not a back seat type If forced it to open it might break the valve body When using a service port use th...

Page 19: ...When the unit is shipped from the factory the unit s internal piping is already charged with refrigerant so be careful when connecting the charge hose After adding the refrigerant make sure to close t...

Page 20: ...rigerant flow when charging 15 Shutoff valve 16 Service port Automatic refirgerant charging operation procedure Note The marks of LED mean as follows h OFF i ON j Blinking OFF ON or Brinking 1 Open th...

Page 21: ...herwise malfunction code U3 will be displayed in the remote controller and nomal operation can not be carried out Check of shutoff valve opening Check of miswiring Judgment of piping length Check of r...

Page 22: ...customer make sure the EL COMPO BOX lid the inspection door and the unit casing are all attached 14 CAUTION FOR REFRIGERANT LEAKS Points to note in connection with refrigerant leaks Introduction The i...

Page 23: ...size to 0 15 or more of the floor area 3 Calculating the refrigerant density using the results of the calcu lations in steps 1 and 2 above If the result of the above calculation exceeds the maximum c...

Page 24: ...English 18 NOTES...

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